Mestrado em Ciências Florestais
URI Permanente para esta coleção
Nível: Mestrado Acadêmico
Ano de início: 2008
Conceito atual na CAPES: 4
Ato normativo: Ofício N. 39-12/2007/CTC/CCA/CAPES de 31/07/2007 Homologado pelo CNE (Portaria Nº 656 de 22/05/2017) Publicação DOU em 27/07/2017, Seç. 1, Pag. 36.
Periodicidade de seleção: Semestral
Área(s) de concentração: Ciências Florestais
Url do curso: https://cienciasflorestais.ufes.br/pt-br/pos-graduacao/PPGCFL/detalhes-do-curso?id=1424
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- ItemConversão termoquímica de resíduos de bagaço de cana-de-açúcar e de ossos bovinos em biocarvões para uso na retenção de terbuthylazine do solo(Universidade Federal do Espírito Santo, 2025-02-27) Carvalho, Fernanda Aparecida Nazário de; Mendes, Kassio Ferreira ; https://orcid.org/0000-0002-2869-8434; http://lattes.cnpq.br/7101423608732888; Dias Júnior, Ananias Francisco ; https://orcid.org/0000-0001-9974-0567; http://lattes.cnpq.br/2428652077952117; https://orcid.org/0000-0003-0338-9501; http://lattes.cnpq.br/9149257142112493; Sousa, Rodrigo Nogueira de ; https://orcid.org/0000-0003-3872-5480; http://lattes.cnpq.br/1074112643914964; Souza, Elias Costa de ; https://orcid.org/0000-0001-9514-635X; http://lattes.cnpq.br/2443233154986868; Silva, Álison Moreira da ; https://orcid.org/0000-0003-3671-928X; http://lattes.cnpq.br/9748209517542126Resumo
- ItemAnálise da vulnerabilidade socioambiental à inundação em bacias hidrográficas do Estado do Espírito Santo(Universidade Federal do Espírito Santo, 2025-02-26) Silva, Gabriel Adão Zechini da; Cecílio, Roberto Avelino ; https://orcid.org/0000-0003-2894-2481; http://lattes.cnpq.br/5497084995510727; Zanetti, Sidney Sara ; https://orcid.org/0000-0001-9135-3925; http://lattes.cnpq.br/4564504261678929; https://orcid.org/0000-0001-8846-7964; http://lattes.cnpq.br/6726547334509852; Oliveira, Francielle Rodrigues de ; https://orcid.org/0000-0002-7135-432X; http://lattes.cnpq.br/0392617073008925; Dambroz, Carlos Silva ; https://orcid.org/0000-0002-3918-851X; http://lattes.cnpq.br/2429607903035181The phenomenon of flooding is one of the most critical natural disasters; however, its effects can be further exacerbated by anthropogenic factors such as unplanned urban expansion and accelerated urbanization. In Brazil, many urban areas face critical conditions due to soil impermeabilization, deforestation, and inadequate infrastructure, which intensify the negative social and economic impacts of flooding. The Santa Maria River and Jucu River watersheds in Espírito Santo are particularly critical regions due to the combination of unfavorable natural conditions and challenging socioeconomic factors. Mapping socio-environmental vulnerability emerges as a relevant strategic tool for effective disaster planning and management, enabling not only the mitigation of impacts but also supporting infrastructure planning and emergency actions. In this context, this study aims to map the socio-environmental vulnerability of the Santa Maria River and Jucu River watersheds by integrating environmental and socioeconomic criteria that influence the occurrence and impacts of flooding. The methodology was based on multicriteria analysis with map algebra, using environmental criteria (geomorphology, HAND, precipitation, slope, land use and cover) for susceptibility mapping and socioeconomic criteria (education, income, risk groups, sanitation infrastructure) for vulnerability mapping. The steps included the definition of criteria, geographic data collection, weighting using the AHP method, cartographic processing with data reclassification and normalization, weighted algebra application, and the integration of final maps in a GIS environment. The results indicated that areas of highest susceptibility (grade 5) are concentrated along the coastal zones and densely urbanized regions, such as the Metropolitan Region of Greater Vitória, characterized by flat terrain and intense human occupation. The integrated analysis revealed that these areas overlap with regions of high socioeconomic vulnerability, where population density, precarious drainage infrastructure, and soil impermeabilization amplify risks. The mapping provides a clear view of the priority areas for interventions and public policies. It is concluded that the metropolitan region of Vitória, particularly the municipalities of Vitória, Vila Velha, and Cariacica, contains areas classified as having very high levels of socio-environmental vulnerability to flooding, making them the most critical regions within the Santa Maria da Vitória and Jucu River basins
- ItemFios de microfibrilas de celulose com amido catiônico e álcool polivinílico(Universidade Federal do Espírito Santo, 2024-08-19) Colares Neto, Jair Rogerio; Moulin, Jordão Cabral ; https://orcid.org/0000-0002-5543-3853; http://lattes.cnpq.br/3577181658928552; https://orcid.org/0000-0002-4066-6611; http://lattes.cnpq.br/4057333556658347; Oliveira, Michel Picanço ; https://orcid.org/0000-0001-9241-0194; http://lattes.cnpq.br/6383844066460475; Silva, Danillo Wisky ; https://orcid.org/0000-0003-4330-6934; http://lattes.cnpq.br/0273926630327284; Mendonça, Maressa Carvalho ; https://orcid.org/0000-0001-7532-7794; http://lattes.cnpq.br/7436952574918543The production of renewable-based polymers to replace fossil-derived ones and reduce environmental impacts is gaining prominence. Cellulose is the most abundant renewable polymer on Earth, and cellulose microfibrils (MFC) exhibit mechanical and physical properties that enable the production of filaments. This study explores the fabrication of MFC-reinforced yarns, combining cationic starch (AC) and polyvinyl alcohol (PVA) as reinforcements, using sodium alginate as the matrix. Both bleached and unbleached MFC (4.5% w/w) were used, with AC (3% w/w) and PVA (2% w/w) in a sodium alginate matrix (2% w/w) as the binding agent, using the wet spinning process with calcium chloride as the solvent. Analyses included microstructure, water absorption, thermogravimetry, infrared spectroscopy, X-ray diffraction, and mechanical strength tests. The results indicate that the addition of AC and PVA improves the properties of the yarns. Tensile strength increased from 30 MPa to 60 MPa (AC) and to 50 MPa (PVA). The elastic modulus increased from 2 GPa to 4 GPa (AC) and to 3.5 GPa (PVA). Unbleached MFC yarns showed higher water absorption (5.52 g/g) compared to bleached MFC yarns (4.08 g/g). Regarding filament size, PVA yarns had a larger diameter, being 16% larger than the cationic starch yarns. It is concluded that the combination of MFC with AC and PVA improves the properties of the filaments
- ItemO resultado da análise da densidade básica da madeira é influenciado pelo método de determinação e tipo de amostra?(Universidade Federal do Espírito Santo, 2024-06-27) Arantes, Bruno Sangali; Souza, Izabel Christina Gava de ; https://orcid.org/0000-0002-8396-0036; http://lattes.cnpq.br/0258207357361340; Silva, João Gabriel Missia da ; https://orcid.org/0000-0002-3714-2745; http://lattes.cnpq.br/2819330926740099; Dambroz, Graziela Baptista Vidaurre ; https://orcid.org/0000-0001-9285-7105; http://lattes.cnpq.br/2988548512574129; https://orcid.org/0000-0003-4674-2723; http://lattes.cnpq.br/0957581572507863; José Luís Penetra Cerveira Louzada ; https://orcid.org/0000-0002-0991-1711; http://lattes.cnpq.br/; Segura, Tiago Edson Simkunas ; https://orcid.org/0000-0002-7951-9694; http://lattes.cnpq.br/0738517737421504; Castor Neto, Thayanne Caroline ; https://orcid.org/0000-0002-9740-1665; http://lattes.cnpq.br/6667969524192169; Batista, Djeison Cesar; https://orcid.org/0000-0003-4427-2457; http://lattes.cnpq.br/2211842232280717Wood basic density is a crucial parameter for the viability of industries in the forestry sector, particularly in pulp production. However, the time required to saturate wood samples before analysis remains a significant challenge. Existing technical standards have gaps that lead to the adoption of different samples, saturation methods, and methodologies for determining basic density, resulting in variations in the outcomes. This study aimed to analyze the effect of different methods, sample types, and saturation parameters on the determination of the basic density of eucalyptus wood and how they interfere with the prediction of parameters in the pulp industry. The study involved the analysis of five eucalyptus clones (E. grandis, E. urophylla, and their hybrids) aged 6.8 years, originating from an experimental plot in São Miguel Arcanjo, São Paulo. Five trees per clone were collected, sampled at different positions along the commercial stem, generating discs and chips. The basic density of the discs was determined by the hydrostatic balance method, while the chips were analyzed using both the hydrostatic balance method and the maximum moisture content method, with saturation checked every three days, except for tests 2 and 3, which began on the fourth day, using constant mass and submersion methodologies. The results showed that the saturation method significantly influences the basic density values obtained by the maximum moisture content method, with differences of up to 28.27 kg/m³. Although the saturation tests did not significantly impact the final basic density values, tests 2 and 3 reduced the saturation time to six days, while the others varied between 9 and 15 days. The difference in basic density between wedges and chips was significant only for clone C2, with an average difference of up to 10.78 kg/m³ across all clones. Test 3, using vacuum, pressure, and a temperature of 100°C, produced the best results. The sample type, saturation criterion, and determination method proved to be factors of variability in wood basic density, and this variability led to consequences in the prediction of specific consumption
- ItemAvaliação do sequestro de carbono de dois ecossistemas marginais da mata atlântica(Universidade Federal do Espírito Santo, 2024-07-29) Bindeli, Gabrielli Machado; Santos, Alexandre Rosa dos; https://orcid.org/0000-0003-2617-9451; Dias, Henrique Machado; https://orcid.org/0000-0003-2217-7846; Moreira, Taís Rizzo; Santos, Daniel Medina CorrêaThe greenhouse effect is a natural and necessary phenomenon for maintaining life on Earth. Over the years, this process has been strongly influenced by human activity, particularly industrialization and deforestation, leading to an imbalance in natural processes. This has resulted in global climate changes, including extreme events such as heatwaves, prolonged droughts, and above-average rainfall. These changes have had numerous consequences for the planet and its diverse forms of life. Among the various mechanisms aimed at mitigating the impacts of this process is investment in carbon sequestration and trading. This involves estimating the amount of carbon sequestered in a specific area to offset carbon emissions from a particular organization or entity. Based on this concept, a recent study sought to estimate the amount of carbon sequestered in distinct ecosystems in the state of Espírito Santo, Brazil. Two scenarios were considered using data from two different satellites. The analysis focused on two conservation units: Pedra Azul State Park (PEPAZ) and Paulo César Vinha State Park (PEPCV). These parks protect peripheral ecosystems of the Atlantic Forest. The study correlated topographical, meteorological, and vegetation characteristics with carbon sequestration. Four dates in 2023 were evaluated: May 3rd, August 7th, September 24th, and November 11th. The results indicated that PEPAZ sequestered a greater amount of carbon on all evaluated days. Temperature and solar radiation were the most influential variables in this process. Regarding vegetation, forested areas had a greater carbon sequestration capacity compared to less dense formations, such as rocky outcrops and open shrublands. While there was good correlation between scenarios A and B, discrepancies were observed when evaluating the Mean Squared Error (MSE) and the Root Mean Squared Error (RMSE). Therefore, fieldwork is recommended to validate which method aligns better with reality. The methodology of this work can be adapted and applied to other regions of Brazil and the world.